The ambitious "15 Days" project at 10 Post Office Square in Boston that teamed Leggat McCall Properties, Commodore Builders and Audrey O’Hagan Architects LLC last September has been certified LEED-platinum by the U.S. Green Building Council (USGBC).

The project is the first and only commercial interior work in Boston to earn that distinction, according to Leggat.

The project – a build-out of Leggat McCall Properties’ new 10,000-square-foot office space – typically would have taken 10 to 12 weeks to complete, but was finished in 15 work days from Sept. 8-26, 2008. At the same time, the project’s energy consumption was reduced by 35 percent (compared to a conventional project), with future reconfiguration of the space expected to cost 50 percent less than traditional construction, take 25 percent of the time and reuse 100 percent of the materials, according to Leggat.

The work at the Leggat McCall Properties space is one of only 30 LEED platinum-certified commercial interior projects in the nation, and was documented online at http://www.15days.tv/.

"This project clearly demonstrates that green building construction is not only good for the environment, but can be done cost-effectively and in record time," said Jim Hunt, chief of environment and energy for the city of Boston. "The significant energy savings achieved through the use of innovative technology will pay substantial dividends year after year. Mayor Menino and I applaud the project team of Commodore Builders/Leggat McCall/O’Hagan for getting the job done and setting yet another historic milestone in Boston’s already rich green building history."